Features: This Remote Control Switch Adopts A 12v 10A Relay, Which Controls High Power And Makes The Control Performance More Stable Learning Button Design Allows For Multiple Remote Controls And Switches To Be Paired With Any Switch, Using Imported Chips And High-Quality Double-Sided Pcb Circuit Boards, The Product Is More Durable And Compatible With Better Quality. The Wireless Signal Program Learning Function Makes The Product Highly Anti-Interference, And Similar Products Will Not Have Any Interference Or Garbled Characters.  Specifications: Radio Frequency: 315mhz Operating Voltage: 12V DC Decode: Learning Code Operating Type: Jogging, Interlock, And Self-Locking Size: 100mm X 80mm X 27mm Remote Control Battery: 1* 23A 12V Battery(Battery Included) Transmitting Distance: 200-500m Matching Methods: Press The Learning Button On The Receiver For About 2 Seconds, Then The Light Will Turn On And Release To Enter The Learning Mode; Press A Key On The Remote Control To Learn According To Your Desired Function. If The Receiver Receives A Signal And The Indicator Light Flashes About 4 Times, It Indicates Successful Learning. Clearing Method: Press And Hold The Learning Button On The Receiver For About 8 Seconds Until The Indicator Light Flashes Twice And Then Goes Out, Indicating Successful Clearing.  Working Modes: Jogging, Interlock, And Self-Locking Can Be Switched At Will. Interlock: Press Each Key On The Remote Control With Your Hand To Turn On The Corresponding Relay, And Then Press Another Remote Control Key; The Corresponding Relay Is Connected, The Other Is Disconnected, And Only One Relay Can Be Connected At A Time. Jogging: Press And Hold Each Key On The Remote Control To Activate The Corresponding Relay, Then Release The Remote Control Button; The Corresponding Relay Is Disconnected, And Only One Relay Can Be Connected At A Time. Self Locking: The Same Key Controls One Channel, Press It Once To Turn On, Press It Again To Turn Off, And Two Channels Are Independently Controlled,  Package Including: 1* Receiver 1* Transmitter